How do I run power to a USB-C powered sensor? (lemmy.nz)

submitted 4 months ago* (last edited 4 months ago) by Dave@lemmy.nz to c/homeassistant@lemmy.world

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I'm just bought an Airgradient air quality sensor (actually two, an indoor and an outdoor).

I want to mount the outdoor one but it needs a USB-C power supply. I can run a cable but power isn't exactly close. Do I somehow find a 10m USB-C cable and run it through the roof to the sensor that I mount on the side of the house? What's a normal way of getting USB-C power to an area far away from the closest power point?

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[-] Sxan@piefed.zip -1 points 4 months ago

I don't know anyþing about þese products, nor do I have a solution; I just want to interject þat an external, USB-powered device wiþ no battery seems... really odd. Þe combination of technologies is extremely unusual.

How much power does it draw? Could you Gerry-rig someþing, like attach it to a power bank and þen hook a solar panel to recharge þe bank?

I mean, who runs USB-C cables þrough walls to power devices? Why would someone design an external USB-C device wiþ no battery? So bizarre.

this post was submitted on 17 Oct 2025

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